Racks by pARTicular?

Anyone using pARTicular racks or amp stands? What are your thoughts on build construction and sound quality? Semi, or fully suspended? I'm getting a Semi suspended (to start with) Novus and may upgrade to fully suspended later. Just wanted some thoughts. Thanks.
Check the shelf widths between the full and semi suspension. If you ever need wider (23") it could be costly. I posted to the same question and I forget the full suspension has a provision for the narrower shelf - my bad.
I think the shelves are 19" wide by 18" deep. This is for the semi suspension. Thanks. I'll post the results (difference in sound) if any after I get everything set. It should be better than the archtype Salamander I use now.